On March 5, 2023, a cyberattack wreaked havoc on Hospital Clínic, one of Barcelona's leading public hospitals, causing surgery and appointments to be cancelled and forcing staff to work with pen and paper.

Marc Torrens of ESADE Business School explains how ransomware attacks like this work.

Jordi Hernández of the Autonomous University of Barcelona tells Cristina Tomàs White the lessons they learned after a data breach in 2021.

Plus the thoughts of David López, a cybersecurity expert at IPM, and Tomàs Roy, director of the Catalan Cybersecurity Agency.

This week's Catalan phrase is "jugar al gat i la rata," to play cat and mouse (or rat, literally).

Presented by Lorcan Doherty with Cillian Shields.